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How can I get the external SD card path for Android 4.0+?
...s = "";
try {
final Process process = new ProcessBuilder().command("mount")
.redirectErrorStream(true).start();
process.waitFor();
final InputStream is = process.getInputStream();
final byte[] buffer = new byte[1024];
while (is.read(buffer)...
Standard concise way to copy a file in Java?
...ning streams, declaring a buffer, reading in one file, looping through it, and writing it out to the other steam. The web is littered with similar, yet still slightly different implementations of this type of solution.
...
Why do we always prefer using parameters in SQL statements?
...w to working with databases. Now I can write SELECT , UPDATE , DELETE , and INSERT commands. But I have seen many forums where we prefer to write:
...
Does making a struct volatile make all its members volatile?
...u declare the object with const, all it's member will be const too.
const and volatile are two faces of the same coin; they're so that the Standard often refers to them as cv-qualifiers.
Quoting from the Standard ($7.1.5.1/8)
[Note: volatile is a hint to the
implementation to avoid aggress...
How do I embed a single file from a GitHub gist with the new gist interface?
...
Take the gist URL from the left-hand side and after the .js add a query string like ?file=myFile.blah, e.g.
<script src="https://gist.github.com/4505639.js?file=macroBuild.scala" type="text/javascript"></script>
...
How to check if command line tools is installed
...as it appears in the Applications directory.
There are also the xcodebuild and xcode-select files in /usr/bin
I need to know if the command line tools is installed.
Is there a command for it?
What can I do to see if XCode CLT is installed and if yes to find the version installed?
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PostgreSQL query to return results as a comma separated list
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You can use the array() and array_to_string() functions togetter with your query.
With SELECT array( SELECT id FROM table ); you will get a result like: {1,2,3,4,5,6}
Then, if you wish to remove the {} signs, you can just use the array_to_string() ...
Time complexity of Euclid's Algorithm
...ow what happens over two iterations:
a', b' := a % b, b % (a % b)
Now a and b will both decrease, instead of only one, which makes the analysis easier. You can divide it into cases:
Tiny A: 2a <= b
Tiny B: 2b <= a
Small A: 2a > b but a < b
Small B: 2b > a but b < a
Equal: a ==...
How do you programmatically set an attribute?
Suppose I have a python object x and a string s , how do I set the attribute s on x ? So:
4 Answers
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Start may not be called on a promise-style task. exception is coming
I am creating a simple wpf desktop application. UI have just a button and code in .cs file like.
3 Answers
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